Question

10.
Which of following statements
regarding the configuration of
elements in a periodic table is/are true?
(a) The periods indicates the value of n
for the valence shell
(b) The number of elements present in
each period is twice the number of
atomic orbitals available in the energy
level that is being filled
(c) First period starts with filling of the
lowest level
(d) All of the above​

Answer 1

Answer:

maybe a

Explanation:

thanks if it,s wrong than sorry